Skip to main content
padlock icon - secure page this page is secure

Characterization of serum dipeptidyl peptidase IV activity in three diverse species of West African crocodilians

Buy Article:

$24.09 + tax (Refund Policy)

Serum dipeptidyl peptidase IV (DPPIV) activity was characterized in three divergent and sympatric species of West African crocodiles. The serum of the Nile crocodile (Crocodylus niloticus) exhibited higher DPPIV activity than that of the African dwarf crocodile (Osteolaemus tetraspis) and the slender-snouted crocodile (Mecistops cataphractus). Kinetic analyses showed that the rate of product formation was higher in serum of C. niloticus with respect to time, and it was confirmed by double reciprocal plot analysis that the Vmax for serum of C. niloticus was higher than the other two species. However, the Michaelis constants were very similar for all three species, indicating that the C. niloticus DPPIV enzyme may be a more efficient catalyst. Thermal activity profiles demonstrated that the serum DPPIV activities of all three species increased substantially with temperature. Although activity of C. niloticus was higher than that of O. tetraspis and M. cataphractus at all temperatures investigated, linear increases of activity with temperature were noted for all three species. The results from this study show that three diverse species of West African crocodilians express soluble serum DPPIV.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics


Document Type: Research Article

Publication date: July 1, 2011

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more